Are Russell Brand and Katy Perry officially a couple?

Talk about an interesting pairing. Controversial British comic and VMA host, Russell Brand, seems to be getting more and more serious with pop singer Katy Perry. The two had a rumored hook-up at Lady Gaga's VMA after party, have flirted like crazy since — and now it seems the two vacationed together in Thailand. Both Twittered about their faraway vacay, though neither mentioned the other's names. Check out Katy's post below: